3642578101 has 2 divisors, whose sum is σ = 3642578102. Its totient is φ = 3642578100.

The previous prime is 3642578087. The next prime is 3642578143. The reversal of 3642578101 is 1018752463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2561878225 + 1080699876 = 50615^2 + 32874^2 .

It is an emirp because it is prime and its reverse (1018752463) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642578101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642578171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821289050 + 1821289051.

It is an arithmetic number, because the mean of its divisors is an integer number (1821289051).

Almost surely, 2^3642578101 is an apocalyptic number.

It is an amenable number.

3642578101 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642578101 is an equidigital number, since it uses as much as digits as its factorization.

3642578101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 3642578101 is about 60353.7745381347. The cubic root of 3642578101 is about 1538.6374214235.

The spelling of 3642578101 in words is "three billion, six hundred forty-two million, five hundred seventy-eight thousand, one hundred one".